.picker {
    display: none;
    position: fixed;
    top: 0;
    z-index: 100;
    width: 100%;
    height: 100%;
    overflow: hidden;
    text-align: center;
    font-family: PingFang SC,STHeitiSC-Light,Helvetica-Light,arial,sans-serif;
    font-size: 14px;
    -moz-user-select: none;
    -webkit-user-select: none;
    -ms-user-select: none;
    user-select: none
}


.picker .picker-mask {
    position: absolute;
    z-index: 500;
    width: 100%;
    height: 100%;
    transition: all .5s;
    -webkit-transition: all .5s;
    background: transparent;
    opacity: 0
}

.picker .picker-mask.show {
    background: rgba(0,0,0,.6);
    opacity: 1
}

.picker .picker-panel {
    position: absolute;
    z-index: 600;
    bottom: 0;
    width: 100%;
    height: 6rem;
    background: #fff;
    transform: translateY(243px);
    -webkit-transform: translateY(243px);
    transition: all .5s;
    -webkit-transition: all .5s
}

.picker .picker-panel.show {
    transform: translateY(0);
    -webkit-transform: translateY(0)
}

.picker .picker-panel .picker-choose {
    position: relative;
    height: 1rem;
    line-height: 1rem;
    color: #878787;
    font-size: 0.4rem;
}

.picker .picker-panel .picker-choose .picker-title {
    line-height: 1rem;
    font-size: 0.4rem;
    font-weight: bold;
    text-align: center;
    color: #333;
    margin: 0;


}

.picker .picker-panel .picker-choose .cancel,.picker .picker-panel .picker-choose .confirm {
    position: absolute;
    /*padding: 10px;*/
    /*top: 6px*/
    padding: 0 0.5rem;
}

.picker .picker-panel .picker-choose .confirm {
    right: 0;
    color: #fa8919
}

.picker .picker-panel .picker-choose .cancel {
    left: 0
}

.picker .picker-panel .picker-content {
    position: relative
}

.picker .picker-panel .picker-content .mask-bottom,.picker .picker-panel .picker-content .mask-top {
    position: absolute;
    z-index: 10;
    width: 100%;
    /*height: 2rem;*/
    pointer-events: none;
    transform: translateZ(0);
    -webkit-transform: translateZ(0)
}
.picker .picker-panel .picker-content .mask-bottom{
    height: 3rem;
}
.picker .picker-panel .picker-content .mask-top {
    height: 1rem;
}

.picker .picker-panel .picker-content .mask-top {
    top: 0;
    background: -webkit-gradient(linear,left bottom,left top,from(hsla(0,0%,100%,.4)),to(hsla(0,0%,100%,.8)));
    background: -o-linear-gradient(bottom,hsla(0,0%,100%,.4),hsla(0,0%,100%,.8))
}

.picker .picker-panel .picker-content .mask-top:after,.picker .picker-panel .picker-content .mask-top:before {
    display: block;
    position: absolute;
    border-top: 1px solid #ccc;
    left: 0;
    width: 100%;
    content: " "
}

.picker .picker-panel .picker-content .mask-top:before {
    display: none;
    top: 0
}

.picker .picker-panel .picker-content .mask-top:after {
    display: block;
    bottom: 0
}

.picker .picker-panel .picker-content .mask-bottom {
    bottom: 0;
    background: -webkit-gradient(linear,left top,left bottom,from(hsla(0,0%,100%,.4)),to(hsla(0,0%,100%,.8)));
    background: -o-linear-gradient(top,hsla(0,0%,100%,.4),hsla(0,0%,100%,.8))
}

.picker .picker-panel .picker-content .mask-bottom:after,.picker .picker-panel .picker-content .mask-bottom:before {
    display: block;
    position: absolute;
    border-top: 1px solid #ccc;
    left: 0;
    width: 100%;
    content: " "
}

.picker .picker-panel .picker-content .mask-bottom:before {
    display: block;
    top: 0
}

.picker .picker-panel .picker-content .mask-bottom:after {
    display: none;
    bottom: 0
}

.picker .picker-panel .wheel-wrapper {
    display: -ms-flexbox;
    display: -webkit-box;
    display: flex;
    padding: 0 10px;
}

.picker .picker-panel .wheel-wrapper .wheel {
    -ms-flex: 1 1 1e-9px;
    -webkit-box-flex: 1;
    flex: 1;
    flex-basis: 1e-9px;
    width: 1%;
    height: 5rem;
    overflow: hidden;
    font-size: 0.45rem
}

.picker .picker-panel .wheel-wrapper .wheel .wheel-scroll {
    margin-top:1rem;
    line-height: 1rem
}

.picker .picker-panel .wheel-wrapper .wheel .wheel-scroll .wheel-item {
    height: 1rem;
    overflow: hidden;
    white-space: nowrap;
    color: #333
}

.picker .picker-footer {
    height: 20px
}

@media (-webkit-min-device-pixel-ratio:1.5),(min-device-pixel-ratio:1.5) {
    .border-1px:after,.border-1px:before {
        -webkit-transform: scaleY(.7);
        -webkit-transform-origin: 0 0;
        transform: scaleY(.7)
    }

    .border-1px:after {
        -webkit-transform-origin: left bottom
    }
}

@media (-webkit-min-device-pixel-ratio:2),(min-device-pixel-ratio:2) {
    .border-1px:after, .border-1px:before {
        -webkit-transform: scaleY(.5);
        transform: scaleY(.5)
    }
}